본 시험은 육성돈 사료에 미생물제제를 사료에 미생물제제 A 및 B 0.1 미생물제제 C를 0.2% 혼합 급여할 경우 사료섭취량 및 돈분의 오염물질 배설농도에 미치는 영향을 분석하기 위하여 4처리×반복당 5두로서 총 20두를 공시하여 실시하였는데 그결과를 요약하면 다음과 같다.
이상의 결과를 요약해보면 육성돈에 미생물제제 혼합급여는 사료섭취량을 증가시키는데 효과가 있으나 비료성분 배설량에는 큰 차이를 보이지 않는 것으로 조사되었으며, 오염물질 배설량의 경우에는 사료섭취량이 높은 미생물제제 C 급여구에서 높은 것으로 조사되었다.The effects of microbial feedstuff additives on feed conversion rate and physical and chemical characteristics of excreta in growing pigs were investigated. Three different products (A, B and C) were compared. Microbial population tests showed B contained higher numbers of total bacteria, Lactobacillus spp. and yeasts. The amylase activity of B was also higher than that of A and C. The daily feed intake rates for control, A, B and C were 2.06, 2.13, 2.17 and 2.34 kg, respectively.
Pigs feed product C had the highest liveweight gain(2.89kg). However, the results of feed conversion rate were not significantly different between treatments. Amount of faces excreted for control, A, B and C was 1.18, 1.19, 1.23 and 1.32 kg, respectively. Urine volume for control, A, B, and C was 1.91, 1.80, 2.19 and 2.31 kg respectively. Moisture content, T-N, P2O5 and K2O in pig manure were not significantly different between treatments. The range of BOD values was 63,453 to 73,758mg/ℓ for faeces, and 5,678 to 7,428mg/ℓ, for urine. SS values of solid and liquid excreta ranged from 142,200 to 176,000 and from 710 to 1,025mg/ℓ, respectively.